When merge_and_push failed at the push step, the local defaultBranch ref
was left pointing at the merge commit. This made the three-dot diff
(defaultBranch...initiativeBranch) return empty because main already
contained all changes — causing the review tab to show "no changes."
Now mergeBranch returns the previous ref, and approveInitiative restores
it on push failure. Also repaired the corrupted clone state.
approveInitiative was merging and pushing with a stale local
defaultBranch, causing "rejected (fetch first)" when origin/main
had advanced since the last project sync. Now fetches remote and
fast-forwards the target branch before merging.
Pre-merge mergeability check via `git merge-tree --write-tree` (dry-run, no
side effects). When conflicts exist the "Merge & Push" button is disabled and
a ConflictResolutionPanel shows conflict files with options to resolve manually
or spawn a conflict-resolution agent. Agent questions appear inline via
QuestionForm; on completion the mergeability re-checks automatically.
New server-side: MergeabilityResult type, BranchManager.checkMergeability,
conflict-resolution prompt, checkInitiativeMergeability query,
spawnConflictResolutionAgent mutation, getActiveConflictAgent query.
New frontend: useConflictAgent hook, ConflictResolutionPanel component,
mergeability badge + panel integration in InitiativeReview.
handleTaskCompleted and handlePhaseAllTasksDone both bailed early when
initiative had no branch, silently skipping phase status transitions.
Also, merge failures would skip the phase completion check entirely.
- Decouple phase completion check from branch existence
- Wrap merge in try/catch so phase check runs even if merge fails
- Route updateTaskStatus through dispatchManager.completeTask when
completing, so the task:completed event fires for orchestration
